Oracle Linux 8：kvm_utils3 (ELSA-2023-12855)
high Nessus 插件 ID 182741
语言：
简介
远程 Oracle Linux 主机缺少一个或多个安全更新。描述
远程 Oracle Linux 8 主机上安装的程序包受到 ELSA-2023-12855 公告中提及的多个漏洞的影响。- 发现 QEMU 中存在一个缺陷。热拔出具有异步性，会造成争用情形，即在拔出 virtio-net pci 前端之前程序会清除 net 设备后端。恶意访客可利用此时间窗口触发断言并造成拒绝服务。(CVE-2023-3301)
- 在处理 ClientCutText 消息时，在 QEMU 内置的 VNC 服务器中发现了缺陷。当在 `inflate_buffer` 函数中扩充由攻击者控制的 zlib 缓冲区时，错误的退出条件可能会导致无限循环。能够将剪贴板发送到 VNC 服务器、经过身份验证的远程客户端可利用此问题，触发拒绝服务。(CVE-2023-3255)
- 在 libvirt 中发现一个漏洞。此安全缺陷因反复查询 SR-IOV PCI 设备的功能而出现，这暴露了因未能释放父结构的 g_autoptr 内的 virPCIVirtualFunction 数组而导致的内存泄漏。(CVE-2023-2700)
- 在 QEMU 内置的 VNC 服务器中发现缺陷。当客户端连接到 VNC 服务器时，QEMU 会检查当前连接数是否超过特定阈值，如已超过，则需清理先前的连接。如果先前的连接恰好处于握手阶段并且失败，QEMU 就会再次清理该连接，进而导致空指针取消引用问题。未经身份验证的远程客户端可利用此问题造成拒绝服务情形。(CVE-2023-3354)
- 在 libvirt 中发现一个缺陷。virStoragePoolObjListSearch 函数不会按预期返回被锁定的池，导致在尝试从另一个线程锁定相同对象时发生争用条件和拒绝服务。此问题可允许连接到只读套接字的客户端造成 libvirt 后台程序崩溃。(CVE-2023-3750)
- lsi53c895a 设备中的漏洞会影响最新版本的 qemu。DMA-MMIO 重入问题可能导致内存损坏缺陷，如堆栈溢出或释放后使用。(CVE-2023-0330)
- 当处理 virtio_crypto_handle_sym_req 中的数据加密/解密请求时，在 QEMU 虚拟 crypto 设备中发现一个缺陷。未检查 virtio_crypto_sym_op_helper 中的“src_len”和“dst_len”值，因此当两个值不同时，可能导致堆缓冲区溢出。
(CVE-2023-3180)
请注意，Nessus 尚未测试这些问题，而是只依据应用程序自我报告的版本号进行判断。
解决方案
更新受影响的程序包。另见
插件详情
严重性: High
ID: 182741
文件名: oraclelinux_ELSA-2023-12855.nasl
版本: 1.4
类型: local
代理: unix
发布时间: 2023/10/7
最近更新时间: 2024/11/1
支持的传感器: Frictionless Assessment Agent, Nessus Agent, Continuous Assessment, Nessus
风险信息
VPR
风险因素: Medium
分数: 4.4
CVSS v2
风险因素: High
基本分数: 7.8
时间分数: 5.8
矢量: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS 分数来源: CVE-2023-3354
CVSS v3
风险因素: High
基本分数: 7.5
时间分数: 6.5
矢量: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
时间矢量: CVSS:3.0/E:U/RL:O/RC:C
漏洞信息
CPE: p-cpe:/a:oracle:linux:libvirt-daemon-driver-storage-logical, p-cpe:/a:oracle:linux:libvirt-daemon-driver-storage-iscsi-direct, p-cpe:/a:oracle:linux:qemu-img, p-cpe:/a:oracle:linux:swtpm, p-cpe:/a:oracle:linux:qemu-kvm-block-curl, p-cpe:/a:oracle:linux:qemu-kvm-core, cpe:/o:oracle:linux:8, p-cpe:/a:oracle:linux:perl-hivex, p-cpe:/a:oracle:linux:nbdkit-nbd-plugin, p-cpe:/a:oracle:linux:libvirt-daemon-kvm, p-cpe:/a:oracle:linux:nbdkit-xz-filter, p-cpe:/a:oracle:linux:qemu-guest-agent, p-cpe:/a:oracle:linux:libguestfs-man-pages-ja, p-cpe:/a:oracle:linux:nbdkit-tar-plugin, p-cpe:/a:oracle:linux:nbdkit-bash-completion, p-cpe:/a:oracle:linux:libguestfs-java-devel, p-cpe:/a:oracle:linux:libvirt-daemon-driver-nwfilter, p-cpe:/a:oracle:linux:nbdkit-ssh-plugin, p-cpe:/a:oracle:linux:virt-v2v-bash-completion, p-cpe:/a:oracle:linux:libvirt-docs, p-cpe:/a:oracle:linux:nbdfuse, p-cpe:/a:oracle:linux:virt-v2v-man-pages-ja, p-cpe:/a:oracle:linux:libvirt-daemon-driver-interface, p-cpe:/a:oracle:linux:supermin, p-cpe:/a:oracle:linux:libvirt-client, p-cpe:/a:oracle:linux:libguestfs-xfs, p-cpe:/a:oracle:linux:libvirt-client-qemu, p-cpe:/a:oracle:linux:libnbd-bash-completion, p-cpe:/a:oracle:linux:virt-v2v, p-cpe:/a:oracle:linux:libnbd, p-cpe:/a:oracle:linux:nbdkit-curl-plugin, p-cpe:/a:oracle:linux:libnbd-devel, p-cpe:/a:oracle:linux:libguestfs-rescue, p-cpe:/a:oracle:linux:libvirt-daemon-config-nwfilter, p-cpe:/a:oracle:linux:nbdkit-linuxdisk-plugin, p-cpe:/a:oracle:linux:libguestfs-gfs2, p-cpe:/a:oracle:linux:libiscsi-devel, p-cpe:/a:oracle:linux:sgabios-bin, p-cpe:/a:oracle:linux:libguestfs-bash-completion, p-cpe:/a:oracle:linux:qemu-kvm-block-gluster, p-cpe:/a:oracle:linux:ruby-libguestfs, p-cpe:/a:oracle:linux:netcf, p-cpe:/a:oracle:linux:libvirt-lock-sanlock, p-cpe:/a:oracle:linux:libguestfs-rsync, p-cpe:/a:oracle:linux:libguestfs-javadoc, p-cpe:/a:oracle:linux:nbdkit-tar-filter, p-cpe:/a:oracle:linux:virt-dib, p-cpe:/a:oracle:linux:libvirt-nss, p-cpe:/a:oracle:linux:libguestfs-tools-c, p-cpe:/a:oracle:linux:perl-sys-guestfs, cpe:/a:oracle:linux:8::kvm_appstream, p-cpe:/a:oracle:linux:nbdkit-gzip-plugin, p-cpe:/a:oracle:linux:libvirt, p-cpe:/a:oracle:linux:virt-v2v-man-pages-uk, p-cpe:/a:oracle:linux:nbdkit, p-cpe:/a:oracle:linux:qemu-kvm-block-ssh, p-cpe:/a:oracle:linux:libvirt-daemon-driver-storage-rbd, p-cpe:/a:oracle:linux:libvirt-daemon-driver-storage-gluster, p-cpe:/a:oracle:linux:libvirt-libs, p-cpe:/a:oracle:linux:nbdkit-tmpdisk-plugin, p-cpe:/a:oracle:linux:libvirt-daemon-config-network, p-cpe:/a:oracle:linux:libvirt-daemon-driver-qemu, p-cpe:/a:oracle:linux:nbdkit-vddk-plugin, p-cpe:/a:oracle:linux:swtpm-tools-pkcs11, p-cpe:/a:oracle:linux:libiscsi, p-cpe:/a:oracle:linux:libvirt-dbus, p-cpe:/a:oracle:linux:qemu-kvm, p-cpe:/a:oracle:linux:swtpm-devel, p-cpe:/a:oracle:linux:libguestfs-gobject-devel, p-cpe:/a:oracle:linux:hivex-devel, p-cpe:/a:oracle:linux:libguestfs-tools, p-cpe:/a:oracle:linux:qemu-kvm-block-rbd, p-cpe:/a:oracle:linux:libguestfs-devel, p-cpe:/a:oracle:linux:nbdkit-basic-plugins, p-cpe:/a:oracle:linux:python3-libguestfs, p-cpe:/a:oracle:linux:libguestfs-inspect-icons, p-cpe:/a:oracle:linux:libvirt-daemon-driver-storage-disk, p-cpe:/a:oracle:linux:libguestfs-man-pages-uk, p-cpe:/a:oracle:linux:perl-sys-virt, p-cpe:/a:oracle:linux:libvirt-daemon-driver-storage-scsi, p-cpe:/a:oracle:linux:python3-libvirt, p-cpe:/a:oracle:linux:sgabios, p-cpe:/a:oracle:linux:libvirt-daemon-driver-storage-core, p-cpe:/a:oracle:linux:nbdkit-server, p-cpe:/a:oracle:linux:nbdkit-example-plugins, p-cpe:/a:oracle:linux:libvirt-daemon-driver-storage, p-cpe:/a:oracle:linux:qemu-kvm-common, p-cpe:/a:oracle:linux:lua-guestfs, p-cpe:/a:oracle:linux:libtpms-devel, p-cpe:/a:oracle:linux:hivex, p-cpe:/a:oracle:linux:libvirt-daemon-driver-network, p-cpe:/a:oracle:linux:seabios-bin, p-cpe:/a:oracle:linux:nbdkit-gzip-filter, p-cpe:/a:oracle:linux:libguestfs, p-cpe:/a:oracle:linux:libguestfs-gobject, p-cpe:/a:oracle:linux:libvirt-daemon-driver-storage-mpath, p-cpe:/a:oracle:linux:libguestfs-winsupport, p-cpe:/a:oracle:linux:libvirt-daemon-driver-nodedev, p-cpe:/a:oracle:linux:libguestfs-appliance, p-cpe:/a:oracle:linux:nbdkit-python-plugin, p-cpe:/a:oracle:linux:supermin-devel, p-cpe:/a:oracle:linux:seavgabios-bin, p-cpe:/a:oracle:linux:seabios, p-cpe:/a:oracle:linux:libguestfs-java, p-cpe:/a:oracle:linux:libvirt-devel, p-cpe:/a:oracle:linux:netcf-devel, p-cpe:/a:oracle:linux:qemu-virtiofsd, p-cpe:/a:oracle:linux:swtpm-tools, p-cpe:/a:oracle:linux:qemu-kvm-block-iscsi, p-cpe:/a:oracle:linux:swtpm-libs, p-cpe:/a:oracle:linux:python3-hivex, p-cpe:/a:oracle:linux:libvirt-daemon, p-cpe:/a:oracle:linux:nbdkit-basic-filters, p-cpe:/a:oracle:linux:ruby-hivex, p-cpe:/a:oracle:linux:libiscsi-utils, p-cpe:/a:oracle:linux:python3-libnbd, p-cpe:/a:oracle:linux:libvirt-wireshark, p-cpe:/a:oracle:linux:libvirt-daemon-driver-secret, p-cpe:/a:oracle:linux:libvirt-daemon-driver-storage-iscsi, p-cpe:/a:oracle:linux:netcf-libs, p-cpe:/a:oracle:linux:libtpms, p-cpe:/a:oracle:linux:nbdkit-devel
必需的 KB 项: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/OracleLinux
易利用性: No known exploits are available
补丁发布日期: 2023/10/7
漏洞发布日期: 2023/3/6
参考资料信息
CVE: CVE-2023-0330, CVE-2023-2700, CVE-2023-3180, CVE-2023-3255, CVE-2023-3301, CVE-2023-3354, CVE-2023-3750